Do you know the Three Gorges Dam is the largest hydro-electric dam ever_______?
#91699
A
constructed
B
constructing
C
to be constructed
D
been constructed
推荐题目
 The machine has been made easier for it____.
#94295
A
to operate
B
operated
C
being operated
D
to be operated
The boy had no other choice but ________ the woman ________ breaking the window. 
#96184
A
to apologize to; for
B
apologize to; for
C
apologizing for; to
D
to apologize for; for
Don't pretend ________ when you don't.
#88672
A
knowing
B
know
C
to know
D
to knowing